Five ink is relatively cheap cost for a card that can instantly deal with tough, high-willpower attackers or characters ready to churn lore and progress their player toward victory, so having Dragon Fire at the ready when you need it is always recommended
But, its also a fantastic choice for any Commander player
(A regular Art card can be found in 30% of packs and a foil-stamped Signature Art card can be found in 5% of packs.) Each pack includes a combination of 1-4 cards of rarity Rare or higher and 3-5 Uncommon, 6-9 Common, and 1 Land cards (Full-Art Land in 25% of packs)
The land chosen for earthbending also becomes an Island
Assuming the four Birds you control are all Chocobo tokens, this puts eight extra power on the board once it flips
Four creatures dying isnt that high a hurdle, and in exchange, you get a free emblem, which usually only comes from a planeswalker ultimate